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avanturin [10]
3 years ago
5

a veterinary student estimated the weight of a snapping turtle to be 147 pounds. the actual weight was 175 pounds. what is the p

ercent error between the actual weight of the turtle and the estimated weight
Mathematics
1 answer:
Lana71 [14]3 years ago
3 0
The % error is 20%.
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Need help with this <br>​
defon

Let n be the larger integer and n-2 be the smaller integer.

n² - (n - 2)²

= n² - (n - 2)(n - 2)

= n² - (n² - 4n - 4)

= n² - n² + 4n + 4

= 4n + 4

= 4(n + 1)

No matter what value n is, it will always be a multiple of 4.

4 0
3 years ago
Find the distance between the two points.
Law Incorporation [45]

Answer:  89 will go in the box

This means the exact distance between the two given points is \sqrt{89} which approximates to roughly 9.4339811

===========================================================

Explanation:

To get that answer, we can apply the distance formula

(x1,y1) = (-1,-5) is the first point

(x2,y2) = (4,3) is the second point

Plug the coordinates into the distance formula

d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(-1-4)^2 + (-5-3)^2}\\\\d = \sqrt{(-5)^2 + (-8)^2}\\\\d = \sqrt{25 + 64}\\\\d = \sqrt{89}\\\\d \approx 9.4339811\\\\

--------------------------

Alternative Method:

You could also form a right triangle by adding the point (4, -5). The horizontal leg goes from (-1,-5) to (4,-5) which is a span of 5 units. The vertical leg goes from (4,-5) to (4,3) which is a span of 8 units. The hypotenuse is from (-1,-5) to (4,3) which is the distance we want to find.

After forming the triangle and determining the leg lengths, use the pythagorean theorem and you should get \sqrt{89} as the length of the hypotenuse. As you can probably guess, the distance formula is effectively a slight rephrasing the pythagorean theorem.

8 0
3 years ago
Find the unknown lengths. <br> A=__cm (simplify your answer)
kotegsom [21]

Answer:

a=8cm

Step-by-step explanation:

Because the triangles are similar, you can set the sides to be proportional

1. 16/16=8/a

2. If you cross multiply that mean that a=8

3 0
3 years ago
anna is having a party . she needs 15 invitations. the invitations come in packages of 7 . how many packages of invitations does
lorasvet [3.4K]
3 packages so there would be at least 21 invitiations
8 0
3 years ago
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how old is joe if he is 27 years younger than bob who is 900090090990909909090909090 free brianliest for anyone
Vlad1618 [11]

Answer:

900090090990909909090909063

Step-by-step explanation:

3 0
4 years ago
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